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2012-07-02objective-c: just as we have done for method definitions,Fariborz Jahanian
c-functions declared in implementation should have their parsing delayed until the end so, they can access forward declared private methods. // rdar://10387088 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159626 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02-Wuninitialized: assume that an __attribute__((returns_twice)) function mightRichard Smith
initialize any variable. This is extremely conservative, but is sufficient for now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159620 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Thread safety analysis: fixed bug that occurs when very silly peopleDeLesley Hutchins
use scoped_lockable without putting unlock_function on the destructor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159609 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Introduce CXXAllocatorCall to handle placement arg invalidation.Jordan Rose
This is NOT full-blown support for operator new, but removes some nasty duplicated code introduced in r158784. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159608 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Thread safety analysis: fixed incorrect error message at the end of a ↵DeLesley Hutchins
locks_required function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159607 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Thread safety analysis: don't warn in case of duplicate annotation.DeLesley Hutchins
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159606 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Thread Safety Analysis: turn off checking within trylock functions.DeLesley Hutchins
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159601 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] If 'super' is known to be nil, we can still mark its range.Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159596 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Revert "Remove unused member (& consequently unused parameter) in SA's Call ↵Jordan Rose
code." ...and instead add an accessor. We're not using this today, but it's something that should probably stay in the source for potential clients, and it doesn't cost a lot. (ObjCPropertyAccess is only created on the stack, and right now there's only ever one alive at a time.) This reverts r159581 / commit 8e674e1da34a131faa7d43dc3fcbd6e49120edbe. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159595 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Include -D files in crash report repro scripts. (PR13255)David Blaikie
Now that we're only using -frewrite-includes rather than full preprocessing when producing repro source files, we should also include command line macro definitions in the repro script. I don't have a test case for this because I'm not sure if/how I can open the crash report file when the name is only known by scraping the crash report output. Suggestions welcome if anyone thinks it'd be helpful. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159592 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02In blocks, only pretend that enum constants have enum type if necessary.Jordan Rose
In C, enum constants have the type of the enum's underlying integer type, rather than the type of the enum. (This is not true in C++.) Thus, when a block's return type is inferred from an enum constant, it is incompatible with expressions that return the enum type. In r158899, I told block returns to pretend that enum constants have enum type, like in C++. Doug Gregor pointed out that this can break existing code. Now, we don't check the types of return statements until the end of the block. This lets us go back and add implicit casts in blocks with mixed enum constants and enum-typed expressions. <rdar://problem/11662489> (again) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159591 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02When we're looking for redeclarations which might provide a definition in ↵Eli Friedman
CodeGen, make sure we examine all the redeclarations. PR13252. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159586 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Be more eager about setting the 'Invalid' bit on an invalid classDouglas Gregor
template instantiation. I wasn't able to reproduce this down to anything small enough to put in our test suite, but it's "obviously" okay to set the invalid bit earlier and precludes a known-broken-but-not-marked-broken class from being used elsewhere. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159584 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Remove unused member (& consequently unused parameter) in SA's Call code.David Blaikie
This member became unused in r159559. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159581 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Reintroduced FieldDecl public methods setBitWidth and removeBitWidth.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159579 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Bail out the LiveVariables analysis when the CFG is very large, asTed Kremenek
we are encountering some scalability issues with memory usage. The appropriate long term fix is to make the analysis more scalable, but this will at least prevent the analyzer swapping when analyzing very large functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159578 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Fix subtle bug in AnalysisConsumer where we would not analyze functions ↵Ted Kremenek
whose parent in the call graph had been inlined but for whatever reason we did not inline some of its callees. Also, fix a related traversal bug where we meant to do a BFS of the callgraph but instead were doing a DFS. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159577 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Reduce default template instantiation depth to 512; we're blowing outDouglas Gregor
the stack too often with 1024. Fixes <rdar://problem/11678534>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159573 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Convert existing checkers to use check::preCall and check::postCall.Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159563 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Add generic preCall and postCall checks.Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159562 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Convert CXXConstructExpr over to use CallEvent for evaluation.Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159561 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Use CallEvent for inlining and call default-evaluation.Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159560 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Finish replacing ObjCMessage with ObjCMethodDecl and friends.Jordan Rose
The preObjCMessage and postObjCMessage callbacks now take an ObjCMethodCall argument, which can represent an explicit message send (ObjCMessageSend) or an implicit message generated by a property access (ObjCPropertyAccess). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159559 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Begin replacing ObjCMessage with ObjCMethodCall and friends.Jordan Rose
Previously, the CallEvent subclass ObjCMessageInvocation was just a wrapper around the existing ObjCMessage abstraction (over message sends and property accesses). Now, we have abstract CallEvent ObjCMethodCall with subclasses ObjCMessageSend and ObjCPropertyAccess. In addition to removing yet another wrapper object, this should make it easy to add a ObjCSubscriptAccess call event soon. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159558 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Move the last bits of CallOrObjCMessage over to CallEvent.Jordan Rose
This involved refactoring some common pointer-escapes code onto CallEvent, then having MallocChecker use those callbacks for whether or not to consider a pointer's /ownership/ as escaping. This still needs to be pinned down, and probably we want to make the new argumentsMayEscape() function a little more discerning (content invalidation vs. ownership/metadata invalidation), but this is a good improvement. As a bonus, also remove CallOrObjCMessage from the source completely. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159557 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Convert CallAndMessageChecker and ObjCSelfInitChecker to CallEvent.Jordan Rose
Both of these got uglier rather than cleaner because we don't have preCall and postCall yet; properly wrapping a CallExpr in a CallEvent requires doing a bit of deconstruction on the callee. Even when we have preCall and postCall we may want to expose the current CallEvent to pre/postStmt<CallExpr>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159556 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Convert RetainCountChecker to use CallEvent as much as possible.Jordan Rose
This ended allowing quite a bit of cleanup, and some minor changes. - CallEvent makes it easy to use hasNonZeroCallbackArg more aggressively, which we check in order to avoid false positives with callbacks that might release the object. - In order to support this for functions which consume their arguments, there are two new ArgEffects: DecRefAndStopTracking and DecRefMsgAndStopTracking. These act just like StopTracking, except that if the object only had a return count of +1 it's now considered released instead (so we still get use-after-free messages). - On the plus side, we no longer have to special-case +[NSObject performSelector:withObject:afterDelay:] and friends. - The use of IdentifierInfos in the method summary cache is now hidden; only the ObjCInterfaceDecl gets passed around most of the time. - Since we cache all "simple" summaries and check every function call, there is no real benefit to having NULL stand in for default summaries anymore. - Whitespace, unused methods, etc. Even more simplification to come when we get check::postCall and can unify all these other post* checks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159555 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Add a new abstraction over all types of calls: CallEventJordan Rose
This is intended to replace CallOrObjCMessage, and is eventually intended to be used for anything that cares more about /what/ is being called than /how/ it's being called. For example, inlining destructors should be the same as inlining blocks, and checking __attribute__((nonnull)) should apply to the allocator calls generated by operator new. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159554 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[PCH] Make sure that all newly introduced visible decls in a DeclContextArgyrios Kyrtzidis
coming from an AST file are registered for serialization. A static data member instantiation of in a chained PCH could be missed when serializing decls; the result was that when emitting the visible decls map of its DeclContext, we would use a DeclID that was not actually emitted, leading to crashes or hangs. Fix this by making sure such decls are always registered for serialization. Also introduce extra sanity checks to make sure we don't register new declarations or types after we have serialized the types/decls block. rdar://11728990 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159550 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02A ':' after an enum-specifier at class scope is a bitfield, not a typo for a ↵Richard Smith
';'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159549 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Add a new libclang completion API to get brief documentation comment that isDmitri Gribenko
attached to a declaration in the completion string. Since extracting comments isn't free, a new code completion option is introduced. A new code completion option that enables including brief comments into CodeCompletionString should be a, err, code completion option. But because ASTUnit caches global declarations during parsing before even completion consumer is created, the option is duplicated as a translation unit option (in both libclang and ASTUnit, like the option to cache code completion results). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159539 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02Rename tzcnt intrinsics to match gcc.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159515 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-01PR13189: va_list broken with precompiled headersMeador Inge
For some targets a structure named __va_list_tag is built to help define the __builtin_va_list type. However, __va_list_tag was not being treated as a predefined type thus causing problems when serializing the AST. This commit fixes that oversight by adding the necessary support to treat __va_list_tag as a predefined type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159508 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-30Add support for the C11 _Alignof keyword.Jordan Rose
This behaves like the existing GNU __alignof and C++11 alignof keywords; most of the patch is simply adding the third token spelling to various places. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159494 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-30blocks: fixes a crash when encoding block typeFariborz Jahanian
with argument type of size 0. // rdar://11777609 PR13229. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159477 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29objective-c IRGen: fixes a crash when method type is being mangledFariborz Jahanian
when an argument type size is 0. // rdar://11777609, PR13229 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159472 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29Use -frewrite-includes for crash reports.David Blaikie
In future changes we should: * use __builtin_trap rather than derefing 'random' volatile pointers. * avoid dumping temporary files into /tmp when running tests, instead preferring a location that is properly cleaned up by lit. Review by Chandler Carruth. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159469 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29In Sema::ClassifyName, try to avoid nonsensical corrections toKaelyn Uhrain
keywords when doing type correction. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159464 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29Update the %diff modifer to have an alternate string print when a template treeRichard Trieu
is selected. This will allow more flexibility when converting diagnostics to use template type diffing. Also updated the internal manual and test cases for correctly keeping the bold attribute and for tree printing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159463 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29Revert "Tweak insecureAPI analyzer checks to have the ability to be ↵Ted Kremenek
individually disabled." Jordan Rose corrected me that this actually isn't needed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159462 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29Tweak insecureAPI analyzer checks to have the ability to be individually ↵Ted Kremenek
disabled. The solution is a bit inefficient: it creates N checkers, one for each check, and each check does a dispatch on the function name. This is redundant, but we can fix this once we have the proper ability to enable/disable subchecks. Fixes <rdar://problem/11780180>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159459 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29Add a fix-it hint note to -Wunique-enum to suggest that the last element getsRichard Trieu
initialized with the next to last element to silence the warning. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159458 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29objective-c modern translator: synthesize argument typeFariborz Jahanian
correctly for blocks and function pointer arguments in the written constructor. // rdar://11359268 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159456 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29modern objc translator: string.h is unavailable on some non-OSXFariborz Jahanian
platforms declare memset in rewritten code instead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159454 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29fix a typo in my last commit. I thought I recompiled,Fariborz Jahanian
but apparently I did not. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159452 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29objc diagnostic: pass IdentifierInfo* to the diagnostic systemFariborz Jahanian
to produce quotes instead of adding qoute to the test. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159450 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29std::nullptr_t support in MS headers, from João Matos.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159448 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29Patch for handling C99 veriadic macros when using precompiled headers,Douglas Gregor
from Filipe Cabecinhas! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159446 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29objective-c modern translator: Translation into objc_msgSend_stretFariborz Jahanian
entry point which requires nil check before calling objc_msgSend_stret. // rdar://11359268 - wip. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159445 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29Factor out a check for block commands (that implicitly start a new ↵Dmitri Gribenko
paragraph) into a separate function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159444 91177308-0d34-0410-b5e6-96231b3b80d8
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